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Summary of Contents for Mastech MS8250D
- Page 1 MS8250D DUAL DISPLAY DIGITAL MULTIMETER User’s Manual...
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Page 2: Safety Information
大写 1.2.4 Always be careful when working with voltages 1. Safety Information above 60V DC or 30V AC RMS. 1.2.5 Never measure voltages that might exceed 600V Warning DC/AC above earth ground. Use caution and follow all safety guidelines to 1.2.6 In manual range, if the circuit value is unknown, prevent electric shock or damage to the meter. - Page 3 三角警告符号 1.3 Safety Symbols 2. Description -The MS8250D is a portable, hand-held yet professional Important safety information, please refer meter that features True RMS measurement display, to user’s manual 增加CAT III 描述 AC/DC current, AC/DC voltage, Frequency, Caution when testing on live conductors...
- Page 4 Buttons/Input jack description HOLD: keep current reading on the display FUNC: switch between functions or AC/DC measurement RANGE: switch between auto/manual ranges REL: display relative measurement MAX/MIN: switch between max/min measurement display :turn on/off backlight OFF:Power off position :input jack for voltage, resistance, capacitance, diode, continuity, frequency and duty cycle measurement :common terminal...
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Page 5: Specifications
描述更改 3.1 General Specifications Alternating current 3.1.1 Auto and manual range Direct current 3.1.2 Full range overload protection Diode 3.1.3 Max. voltage between terminal and Continuity ground: 600V DC or AC rms Auto range 3.1.4 Operating altitude: 2000m max. AUTO 3.1.5 Display: 6600 count LCD Maximum display 3.1.6 Polarity indication: automatically displays “-”... - Page 6 ±（1.0% reading + 3.2 Technical Indicators 3.2.3 AC Voltage 3digits） 3.2.1 True RMS characteristics Range Accuracy Resolution 3.2.1.1 For non-sinusoidal signal measurement, the ±(1.5% reading + 5 digits) 660mV 0.1mV Meter provides more accurate measurement than 6.6V 0.001V ±(1.2% reading + 5 digits) the traditional averaging method.
- Page 7 3.2.5 Capacitance 3.2.8 Frequency 3.2.8.1 In V mode: Range Accuracy Resolution ±(4.0% reading + 5 digits) 6.6nF 0.001nF Range Accuracy Resolution 66nF 0.01nF 0.001uF 66Hz 0.01Hz 660nF 0.1nF 660Hz 0.1Hz 6.6µF 0.01µF ±(3.0% reading + 3 digits) ±(1.5% reading + 5 digits) 6.6kHz 0.001kHz 66µF...
- Page 8 3.2.9 DC Current Using the Meter 4.1 Data Hold Range Accuracy Resolution 4.1.1 During measurement, if you want to keep the 660µA 0.1µA reading on the display, press“HOLD”and the 6600µA 1µA reading will be held. ±(1.0% reading + 5 digits) FF 600mA/1000V 10µA 4.1.2 Press“HOLD”again to release the hold.
- Page 9 4.5 Function Switch Note: 1.Even without indication, voltage may still exist. Do not 4.4.1 In voltage and current modes, press“FUNC”to solely rely on NCV detection to determine in voltage switch between AC and DC modes. exists. Detection may be affected by socket design, 4.4.1 In the multi-function position, press“FUNC”to switch insulation thickness or other factors.
- Page 10 66.00M 4.11 Resistance 4.14 Capacitance Capacitance ranges: 6.6nF、66.00nF、660.0nF、 Resistance ranges: 660.0、6.600k、66.00k、660.0k、 6.600F、66.00F、66.0F、6.600mF and 66mF. 6.600M、660.00M. Measuring capacitance: To measure resistance: 4.14.1 Move the rotary switch to the position. 4.11.1 Move rotary switch to the position. Ω 4.14.2 Connect the red test lead to the jack and the 4.11.2 Connect the red test lead to the Ω...
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Page 11: Maintenance
4.16.4 Connect the leads in series to the circuit under test (break circuit and connect red lead to the relatively higher voltage side and black lead to relatively lower voltage side). 4.16.5 Turn power back on to circuit and the measured current will be displayed. - Page 12 1 pair 6. Accessories Test leads Manual Battery 9V 6F22 USB interface cable interface CD ROM disc 1 pcs 00-05-0000...